New Motorola Encryption Article

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batdude
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New Motorola Encryption Article

Post by batdude »

not completely finished, but here ya go:


http://members.aol.com/batlabsdotcom/encryption.pdf
BRAVO MIKE JULIET ALPHA
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jnglmassiv
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Post by jnglmassiv »

Sir,
I tip my hat to you. Well done!
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GEMOTO
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Post by GEMOTO »

Very nice and well written. I learned a lot from that article.
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RKG
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Post by RKG »

I concur.
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cbus
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Post by cbus »

exceptional article. thanks ;)
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ogoun
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Post by ogoun »

Looks good.

Just a quick observation (havent finished the whole article yet)

I must disagree with you about the security of DVP-XL being better than DES-XL.

The keylength is longer, but the algo strength is.. Questionable.

Result: DVP-XL is most likely less secure than DES-XL, due to a most probably weaker encryption algo than DES-XL.

Still, its great to finally see some effort going into collecting together all the moto secure stuff.

Cheers,

Pete
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mr.syntrx
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Post by mr.syntrx »

Good stuff.

RSA didn't develop PGP, though. PGP was developed by Phil Zimmerman, who was persecuted for doing so in a fairly well publicised three year long court case several years ago.

Also, the length of a keyspace alone does not indicate that one cipher is stronger than another. Compare elliptic curve to traditional finite field or integer factorisation cryptography, for example - you'd need 15,000-bit RSA keys to achieve the same level of security as you'd see in 512-bit ECC.
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Pj
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Post by Pj »

ogoun wrote:Looks good.

Just a quick observation (havent finished the whole article yet)

I must disagree with you about the security of DVP-XL being better than DES-XL.

The keylength is longer, but the algo strength is.. Questionable.

Result: DVP-XL is most likely less secure than DES-XL, due to a most probably weaker encryption algo than DES-XL.

Still, its great to finally see some effort going into collecting together all the moto secure stuff.

Cheers,

Pete
Where did you find this? It looked to me the opposite was stated (des more secure than dvp)
Lowband radio. The original and non-complicated wide area interoperable communications system
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ogoun
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Post by ogoun »

About half way down the fourth page, where it states: "DVP-XL is MORE SECURE than DES-XL".

Overall, I am impressed with this PDF. It is LONG overdue. I hope to be able to contribute to it soon. Hopefully it will become a "living document", with revisions and additions being made as they are discovered.

Cheers

Pete
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kd5wyu
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Post by kd5wyu »

All I have to say is "Wow".

I finally understand how encryption works on Motorolas now.

Shame I can't play with it where I usually use my radios.

Thanks, Batdude.

-b-
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larryepage
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Post by larryepage »

Is there any way we can get a copy of this either on the discussion board or on the Batlabs site? My company's firewall and access policy prevent me from accessing aol.members.net or other "standard" discussion boards...

Thanks.
Larry Page
W5LEP
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JAYMZ
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Post by JAYMZ »

http://www.k2jsv.com/batlabs/encryption.pdf

I'll mirror it for Batdude for the people that cannot access AOL servers.
JAYMZ

"Mom and dad say I should make my life an example of the principles I believe in. But every time I do, they tell me to stop it."
Calvin
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boomboy64
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Post by boomboy64 »

I'll repeat the kudos of everyone else so far on an excellent article, and add my 2 cents by stating how pleased I am that we now have what was sorely missing in lots of previous works: Pictures of the actual items!!!

Keep the stuff coming!!

Boomboy64
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larryepage
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Post by larryepage »

Jaymz--

Thanks for the accessible posting.

Batdude--

It is an excellent article.

I'm anxiously awaiting the remaining sections.

Regards,
Larry Page
W5LEP
FCC GROL
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petrus
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Post by petrus »

hi doug,

thanks for these two nice articles.
nice photos, if you need any more ... :wink:, please feel free to ask.

best greetings
andreas
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Zap
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Post by Zap »

Are there any photos we can contribute?

Between us all, we possess at least one of everything /\/\ ever built.
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007
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Post by 007 »

I'm running a couple Spectra's and X9000's with DVP....old skool baby! Need pics?
Do not make Sig angry...he'll just keep ringing the bell.
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Jim2121
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Post by Jim2121 »

very nice work Batdude......
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proff
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XTS3000 encryption

Post by proff »

YOU LEGEND
BUT IN AUSTRALIA
motorola online "not advalable".
can any one else get these boards and if yes , where did you get them?
Allen C
find me on 27.405 Mhz USB
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mr.syntrx
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Post by mr.syntrx »

From private sellers in the USA.

Unless you can find an ex police DVP SYNTRX or something, that is.
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proff
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encryption PCB's

Post by proff »

the company I work for has over 30
XTS3000 radios , so thats why I need at least 15 encryption boards.
If there is this amount of pcb's some where for sale please let me know.
Allen C
find me on 27.405 Mhz USB
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radio-link
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Post by radio-link »

boomboy64 wrote:I'll repeat the kudos of everyone else so far on an excellent article, and add my 2 cents by stating how pleased I am that we now have what was sorely missing in lots of previous works: Pictures of the actual items!!!

Keep the stuff coming!!

Boomboy64
And here some pictures of the old stuff - the inside view of a NTN5763C-module :-)

http://dk5ras.dyndns.org/NTN5763/

Really amazing how much electronics they stuffed into those tiny modules...

Fell free to use the photos for whatever you want.

Ralph.
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proff
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Re: New Motorola Encryption Article

Post by proff »

batdude wrote:not completely finished, but here ya go:


http://members.aol.com/batlabsdotcom/encryption.pdf
why when i clickon this link I am getting a sign up page for AOL
Allen C
find me on 27.405 Mhz USB
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FireCpt809
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Re: New Motorola Encryption Article

Post by FireCpt809 »

It was posted 5 years ago. Contatct batdude he probably moved it.
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Pj
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Re: New Motorola Encryption Article

Post by Pj »

http://www.akardam.net/moto/docs/mirror ... yption.pdf
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Squad5
was mwb9122
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Re: New Motorola Encryption Article

Post by Squad5 »

PJ's latest link works for people behind a work firewall , ETC.

Good write up!
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n3obl
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Re: New Motorola Encryption Article

Post by n3obl »

not my work. For some reason akardam whole site is blocked.
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akardam
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Re: New Motorola Encryption Article

Post by akardam »

n3obl wrote:not my work. For some reason akardam whole site is blocked.
Sounds like your IT monkeys need a beatdown...
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tvsjr
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Re: New Motorola Encryption Article

Post by tvsjr »

n3obl wrote:not my work. For some reason akardam whole site is blocked.
Probably categorized as a "Personal Page" (that's how TrustedSource would do it), which I block as well...
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